短語詞組短語set autotrace 選項SET AUTOTRACE ON 開啟set autotrace traceonly 查看執(zhí)行計劃;與ON相似set autotrace traceonly explain 只顯示執(zhí)行計set t autotrace 使用步驟Zymark Autotrace Workstation 自動固相萃取儀SET AUTOTRACE ON EXPLAIN 只顯示執(zhí)行計劃SET AUTOTRACE ON STATISTICS 只顯示執(zhí)行的統(tǒng)計信息SET AUTOTRACE TRACEONLY STATISTICS 只現(xiàn)實統(tǒng)計信息 返回 autotrace